A team from the University of Manchester analyzed 10 million marriages, using census data from the U.K. and inferring astrological signs from couples’ birth dates.

Astrologists have ideas about which signs make the best matches—a Sagittarius is better off with a Leo or Aquarius than a Cancer. But the University of Manchester team found that lonely hearts who worry about the zodiac are wasting their time.

The study concludes: “This research shows that astrological sign has no impact on the probability of marrying – and staying married to – someone of any other sign.”